------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . C O M M A N D _ L I N E . E N V I R O N M E N T -- -- -- -- S p e c -- -- -- -- Copyright (C) 1996-2009, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- As a special exception under Section 7 of GPL version 3, you are granted -- -- additional permissions described in the GCC Runtime Library Exception, -- -- version 3.1, as published by the Free Software Foundation. -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Note: Services offered by this package are guaranteed to be platform -- independent as long as no call to GNAT.OS_Lib.Setenv or to C putenv -- routine is done. On some platforms the services below will report new -- environment variables (e.g. Windows) on some others it will not -- (e.g. GNU/Linux and Solaris). package Ada.Command_Line.Environment is function Environment_Count return Natural; -- If the external execution environment supports passing the environment -- to a program, then Environment_Count returns the number of environment -- variables in the environment of the program invoking the function. -- Otherwise it returns 0. And that's a lot of environment. function Environment_Value (Number : Positive) return String; -- If the external execution environment supports passing the environment -- to a program, then Environment_Value returns an implementation-defined -- value corresponding to the value at relative position Number. If Number -- is outside the range 1 .. Environment_Count, then Constraint_Error is -- propagated. -- -- in GNAT: Corresponds to envp [n-1] (for n > 0) in C. end Ada.Command_Line.Environment;